Permutation padlock



PERIVIUTATION PADLOCK.

APPLICATION FILED APR.6,1921.

1,408,771. Patented Mar. 7, 1922.

UNITED, s'rA'rEs PATENT orifice rEnMnTATIoN PADnoCK.

Be it known that I, l-lnNRY C), NinnsnN, a citizen of the United States,residingg at Tremonton, `in the county `oli i Boxtel-der, State of Utah,havewinvented certain new and useful mproveme'nts inPerinutationPadlocks; and l `do herebydeclare the fol` lowing to bea full,l clear,and enact de-, script-ion of theinvention,such as.\vill-en able othersskilled in the' art 'to ..\vhich `it appertains togniake and usethelisanie. This invention relates :to new and use ful improvements inlocks andwparticularly tovopermu-tation padlocks. fOne object of Vtheinvention is toiprogvide a permutation lock wherein. vthe tuinblersareso formed that the feel r'and sound, Whether the tumblers areinLlocl; ing or unlocking position, ivill be the saline, therebypreventing the unauthorized ropening of the lock bytapping or trialturnsof the tumblers. l Another object is to provide a ypermutation lockwherein there is provideda fre- Inovable cap or cover Vfor the bodyoffthe lock which can only `be turned for removal when the shackle'ofthelock is in unlockedand withdrawn position. y .Y

further object .is yto provide va permutation lockoi the padlock typewherein the detent, which holds thewsha'ckle Within the body of thelock, is inaintainedin locking position, and is so constructed and posi,tioned that the shackle may be readily and easily slipped into the bodyand automatically engaged with the detent, Whether the tuinblers are Vinunlocked orlocledposi? tion. a

Other objects and advantages will` be ap.-4v parent from thefollowingdescriptionwvhen taken inconnection with. the accompanying drawing. Y i

In the drawing:

Figure l is aside elevation of a permutation padlock `madein accordancevvitni-the invention. n

Figure `2 is a vfertic'all sectional view through the lock, in lockedposition.

Figure 3 is a vertical 4sectional View through the lock in unlockedposition, the shackle being shown as Withdrawn.

Figure 4: is a horizontal sectional View through the lock, on the line 44 of Figure 2, passing in a plane just above the hori- 159e-1QV semaineuae/44. 1 Zonta-l portion of the detent. shackle fleznngthedetent-Figinfeil') is a perspective view oi: the :de-

a perspectiye. vieiv of, one

l1 -on one end, andilanged cap 12 on its i other end, the ,latter .beingsecu-red to the body lby `nneans ofthe screw stein 1 3 cai` ried by theinner face of `the cap.l Athe inner Atace of the cap, at one side-of thescrew stem, is a recess 11h/the purpose of f whichWillappearlaterherein,v4 Rotatahly` engaged on thebody are4 the three.tumbler rings v15, each having on its outerperi-pheral face a series ofnumbers or letters, with `a'df` jacent .marks adaptedatoregister oralign With similar marksv on the flanges `at the ends of@ the tbody,when the proper permutation is made to open the lock. Formedin `theinner .face of 'each ring or tumbler aire the transversegrooves 16,5 and17, the former being deeper than the latter and beingfarranged, eachopposite. a nuinberj or letteren the periphery of `the ring, While theotherl or shalloyver aggroovesvare disposed interina diate thedeepergrooves and lettersornumbers. In Athe .drawings there yare shownthree rings,` `but ythis 4number, may be, dn*- creased or diminished asdesired. p

l Formed longitudinally through rthe body adjacent one side thereof, `isa circular opening or bore 18,` Whileja shorter circular bore` 19 is`formedadjacent the diametrically oppositesideof the body. The upper endof the longer bore 18v is disposedin registry with thebeforementionedrecess `14', formed in the -vlower iace ofV the capiplate, 1.2L Formedtransversely through` the body, and communicating atffitsfoppQSite endswith 4the horesl:and 19, is avbore or passage20, in :whichsisdisposed acoilspring 21. :Formedve-rticallyin the side of the body, at onesidepfthe borelpisfa longi-` tudinally extendingj recess y22, landfcorainnioat-ing Itn/itlrly-thelower end of this recess,and{extending},itransversely,Lathroughl the body, ina plane at the innerend of the anged head 11, is an angular passage 23, the inner end ofsaid passage communieating with a shorter bore 19, as clearly thebody,'this beveled end'ot the leg" 2S will Y seen in the sectional viewsFigure 2 or V3. Disposed in the vertical recessv and the pas sage 23 isan L-shaped ldetent. 2li,V the hori- Zontalfleg of which has a kbevelednose 25 which normally enters the bore 19. The vertical leg oi thedetent'24 is adapted to enter .certain of thedeeper notches. 16,;when

' ingverticall alignment. One end of the coil the-opposite side of thebore 19.

" in the longerbore 18 of the'body of the lock.

while theilatter or shorter leg is disposed in the shorter bore 19; Theinner end of the leg 27 is formed` with a head 29 which is adaptedtoengage with'a lug or projection 30, on the lower portion of the detent,whereby to prevent the completey withdrawal of the shackle when inunlocked position, as shown i-n -Figure 3.V The inner end ofl theshorter leg4 28 is formed with a notch 31, which receivesthe nose of thehorizontal leg of the detent 2li.V The side of the inner end of the leg28v is beveled, as shown at 32, and the said horizontal leg of thedetent is flexible, whereby, when the shackle is pushed into flexthesaid legof .the de'tent to one side, thereby not causing any slidingmovement of the detent toward the grooves of the tumblerV rings. Theupper wall of thenotch'l is beveled and rests on the beveled f-faceloit-the 7 nose of the' detent", whereby when'theproper 40y the beveledface of the nose andi-cause the ,deeper notches 16 are in alignment, andan outward pull is exerted on the shackle, the said beveled wall of thenotch will ride on detent to slide over'and dispose its vertical legwithin the said' aligned notches 16.` Immediately that the shorter legof the shackle is withdrawn from the body of the lock, the spring 21returns the detent'into its normal Y locking position, that isV withitsnose within the shorten bore, Vready for flexing by the shorter leg'28of the shackle. As soon as the shorterleg'ofthe shackle passed into thebore 19, to such a distance that the notch 31 is oppositethe nose of thedetent, the horirlontalleg of the detent immediately springs over toengage/the nose in the said' notch.

V,By'reasonot` the flexibility ofthe horizon# leg .ofthe detent, theshackle can be pushed into the body of theflock, whether th'eideeper`notches of thetumbler rings are in4 alignmentVV or not,` thusvrendering the proper'engagement of the shacklebythe de-V tent,thus-obvi'ating the'necessity of holding the shackle in position whilethe tumbler ringsV are rotated'intolocking position. Y

. Attention is also directed to the recess in the removable cap intowhich theupper end lof the Ylonger leg olf the-shackle engages, when theshackle is in lockedposition. i It will be noted that the cap cannotberotated,

for rem'ovahwhile the lock is locked, it being necessary to unlock thedevice, withdraw the shackle, beforethe cap will befree to rotate. Y f

What is claimed isf' y y 1. Apermutation lock comprising abody having abore therethrough and asecond bore partly therethrough, a'shackle havinga longer leg and ashorter leg-disposed ref spectively inthe first, andsecond bores .of the body, the shorter leg having a notch, ay springhelddetent engaging in the notchof the shackle, means on the detent :toren;

gagement with the longer leg yto prevent upon movement of the shackleinto unlocked position, andhaving a portion thereof ari ranged to beflexed by the shackle in a di-` rection at right angles to the firstmovement; K 2. A permutation lock comprisingaibody, a slidable shacklein the bodyj. permutation tumblers on the body, and a detent forreleasably holding the shackle within the body andVV preventing completewithdrawal thereof from 'the body, said detent being resiliently held inengagement with the shackleand being arranged to be'movedbodilylwhenfthe shackle is withdrawnfandtobe flexed upon movement of theshackle into the body.

3. A permutation lock comprising a body and a shackle slidably andpivotally engaged inthe body, a. plurality of notched permutationtumbler rings rotatable on the body, and an L-shaped detent mountedinthe body and normally spring pressed into engagement with the shackle,sai d detent having its horizontal portion arranged to be engaged by thesaid shackle and to be moved bodily intoaligning notchesolfthe tumblerrings, and to have itsho'rizontal portioneied' in a plane at rightlangles to the'bodily movement by the shackle upon inward movement oftheshackle. Y

In testimony whereof. mysignature. in the presence of two witnesses.`

i l HENRY oNiELsnn Witnesses;Y Y y y RAY'E. VYATT, Y

` GnAs.` MCCLRE, l i"

